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We study the role of the pasta phases on the properties of rotating and magnetized neutron stars. In order to investigate such systems, we make use of two different relativistic mean-field unified inner-crust--core equations of state, with…

核理论 · 物理学 2020-09-23 Ivo Sengo , Helena Pais , Bruno Franzon , Constança Providência

Even though the crystallize nature of the neutron star crust plays a pivotal role in describing various fascinating astrophysical observations, its microscopic structure is not fully understood in the presence of a colossal magnetic field.…

高能天体物理现象 · 物理学 2023-02-23 Vishal Parmar , H. C. Das , M. K. Sharma , S. K. Patra

We study the impact of strong magnetic fields on the pasta phases that are expected to exist in the inner crust of neutron stars. We employ the relativistic mean field model to describe the nucleon interaction and use the self-consistent…

核理论 · 物理学 2021-01-14 S. S. Bao , J. N. Hu , H. Shen

The Vlasov equation is used to determine the dispersion relation for the eigenmodes of magnetized nuclear and neutral stellar matter, taking into account the anomalous magnetic moment of nucleons. The formalism is applied to the…

高能天体物理现象 · 物理学 2017-04-26 Jianjun Fang , Helena Pais , Sagar Pratapsi , Sidney Avancini , Jing Li , Constança Providência

We study the effect of strong magnetic fields, of the order of $10^{15}-10^{17}$ G, on the extension of the crust of magnetized neutron stars. The dynamical instability region of neutron-proton-electron ($npe$) matter at subsaturation…

核理论 · 物理学 2016-12-14 Jianjun Fang , Sidney Avancini , Helena Pais , Constança Providência

We discuss outer and inner crusts of neutron stars in strong magnetic fields. Here, we demonstrate the effect of Landau quantization of electrons on the ground state properties of matter in outer and inner crusts in magnetars. This effect…

高能天体物理现象 · 物理学 2015-06-12 Rana Nandi , Debades Bandyopadhyay

The ohmic decay of magnetic fields confined within the crust of neutron stars is considered by incorporating both the effect of neutron star cooling and the effect of space-time curvature produced by the intense gravitational field of the…

天体物理学 · 物理学 2009-10-30 Sujan Sengupta

In this work, we have studied oscillations in the crust of a neutron star which magnetic field has both dipolar and toroidal components, the former extends from the stellar interior to the outer space and the later is confined inside the…

广义相对论与量子宇宙学 · 物理学 2020-02-05 Gibran Henrique de Souza , Ernesto Kemp

The impact of strong magnetic fields B>10e13 G on the thermal evolution of neutron stars is investigated, including crustal heating by magnetic field decay. For this purpose, we perform 2D cooling simulations with anisotropic thermal…

天体物理学 · 物理学 2010-11-11 Deborah N. Aguilera , José A. Pons , Juan A. Miralles

Neutron stars host the strongest magnetic fields that we know of in the Universe. Their magnetic fields are the main means of generating their radiation, either magnetospheric or through the crust. Moreover, the evolution of the magnetic…

高能天体物理现象 · 物理学 2022-01-24 Konstantinos N. Gourgouliatos , Davide De Grandis , Andrei Igoshev

In the present work, we consider nuclear matter in the innermost crust of neutron stars under the presence of a strong magnetic field within the framework of a relativistic mean-field description. Two models with a different slope of the…

核理论 · 物理学 2022-03-09 Xiaopeng Wang , Jing Li , Jianjun Fang , Helena Pais , Constança Providência

The presence of strong magnetic fields in neutron stars, such as in magnetars, may significantly affect their crust-core transition properties and the crust size. This knowledge is crucial in the correct interpretation of astrophysical…

核理论 · 物理学 2019-04-03 Debarati Chatterjee , Francesca Gulminelli , Debora P. Menezes

It has been clear for some time now that super-critical surface magnetic fields, exceeding 4 x 10^13 G, exist on a subset of neutron stars. These magnetars may harbor interior fields many orders of magnitude larger, potentially reaching…

高能天体物理现象 · 物理学 2015-03-16 Farbod Kamiab , Avery E. Broderick , Niayesh Afshordi

The evolution of the magnetic field in neutron star crusts because of the Hall effect has received significant attention over the last two decades, which is strongly justified because of the dominance of this effect in highly magnetised…

高能天体物理现象 · 物理学 2023-03-15 Konstantinos N. Gourgouliatos

Isolated neutron stars show a diversity in timing and spectral properties, which has historically led to a classification in different sub-classes. The magnetic field plays a key role in many aspects of the neutron star phenomenology: it…

高能天体物理现象 · 物理学 2015-01-28 Daniele Viganò , Jose A. Pons , Juan A. Miralles , Nanda Rea

In the present work we study the effects of strongly quantizing magnetic fields and finite temperature on the properties of inner crusts of hot neutron stars. The inner crust of a neutron star contains neutron-rich nuclei arranged in a…

核理论 · 物理学 2021-08-18 Rana Nandi , Somnath Mukhopadhyay , Sarmistha Banik

We investigate the effects of strong magnetic fields upon the gross properties of neutron and protoneutron stars. In our calculations, the neutron star matter was approximated by the pure neutron matter. Using the lowest order constrained…

太阳与恒星天体物理 · 物理学 2015-06-11 Gholam Hossein Bordbar , Zeinab Rezaei

Neutron stars exhibit magnetic fields and densities far beyond those achievable in terrestrial laboratories, offering a natural probe of strongly interacting matter under extreme conditions. Using observationally anchored mass-radius…

宇宙学与河外天体物理 · 物理学 2026-01-13 Abriana Lyda , Prajwal MohanMurthy

We present calculations of magnetic field evolution by the Hall effect and Ohmic decay in neutron star crusts. We first discuss when and for which neutron stars the Hall effect is important relative to Ohmic decay. We compute the evolution…

天体物理学 · 物理学 2008-11-26 Andrew Cumming , Phil Arras , Ellen G. Zweibel

We discuss the effects of strong magnetic fields through Landau quantization of electrons on the structure and stability of nuclei in neutron star crust. In strong magnetic fields, this leads to the enhancement of the electron number…

高能天体物理现象 · 物理学 2015-05-20 Rana Nandi , Debades Bandyopadhyay
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